Remanufactured GM GMC Chevy Silverado Suburban Yukon V8 OHV 4.8/5.3 Cylinder Head PAIR Cast # 706 1999-2007 (CORE RETURN REQUIRED)

Description

Complete disassembly and thorough cleaning via hot tank & pressure tested to confirm casting integrity
Valve job Performed with all required angles & vacuum tested seals to ensure perfect compression.
PCD milled to ensure a super smooth finish. (PCD stands for Polycrystalline Diamond, and is best for aluminum heads).
New valve stem seals installed on all our heads & all valve guides are replaced with new ones as necessary.
New valve seats installed as necessary

Vehicles & Years Applicable:

4.8 ‘LR4’ V8
– 1999 – 2003 Silverado / Sierra
– 2003 – 2004 Express / Savana
– 2000 – 2003 Tahoe / Yukon

5.3 ‘LM7’ V8; 270-295 HP
– 1999 – 2007 Silverado / Sierra
– 2003 – 2007 Express / Savana
– 2000 – 2006 Tahoe / Yukon / Suburban / Yukon XL / Avalanche
– 2002 – 2005 Escalade (2WD)

5.3 ‘L59’ (FFV) V8; 285-295 HP
– 2002 – 2006 Tahoe / Yukon / Suburban / Yukon XL 1500
– 2002 – 2007 Avalanche
– 2002 – 2007 Silverado / Sierra 1500

5.3 ‘LM4’ V8; 290-300 HP
– 2003 – 2005 Trailblazer EXT
– 2003 – 2004 SSR / Envoy XL / Isuzu Ascender
– 2004 Buick Rainier

***THIS LISTING IS FOR THE 706 CASTING NUMBER ONLY***